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Model 5 Shiets-Sheetl L. s. PARRE. Maohine for Forging Horseshoe Nails.No. 241,413.- Patented May 10, 1881.1

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YModel.) 7 Q L. s. PARRE. Machine for Forging Horseshoe Nails; NO.241,413.

' 5 Sheets-Sheet 2.

I Patented May 10,188],

(ModeL) 5 Sheets-Sheet 3.

I Lys. PAR Ef Machine foi Forging Horseshoe Nails.

No. 241,413. Patented May 10,1881.

* KI LL In N //% /Z@Z3/ MW v iizor N. PETERS, Photb-Lilhographer.Washingion, D. C.

(ModeL) 5 Sheets-Sheet 4.

L.s. PARRfi; I Machine for Forging Horseshoe Nails. No.241,413. PatentedMay 10,1881.

lwi'inesses 0111's eglarr Jzeom N, PETERS. F'hotmLikhugnpher, WashingiomD. C.

constructed to receive suitable journal-bean:

UNITED STATES PATENT OFFICE.

LOUIS S. PARKE, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO ABRAHAM W.KINGSLAND, OF SAME PLACE.

Application filed March 8, 1880.

[[0 all whom it may concern Be it known that I, LOUIS S. PARKE, ofChicago, in the county of Cook and State of Illinois, have inventedcertain new and useful Im provements in Machines forForgin g Horsesh oe-Nails, which are fully set forth in the followin specification,reference being had to the accom panying drawings, in which- Figure 1represents a rear elevation of a machine embodying my improvements; Fig.2, a vertical section of the same, taken on the line a m, Fig. 1; Fig.3, a transverse vertical section taken on the line 3/ y, Fig. 2; Fig. 4,a plan section taken on the line a 2, Fig. 1; Fig. 5, a detail verticalsection taken on the line '1; c, Fig. 4, and Fig. 6 a longitudinalsection taken on-the line 20 to, Fig. 1.

My invention relates to machines for forging horseshoe-nails in which arevolving rollerhammer is employed in connection with a striking-hammer;audits object is to effect the cutting of the nail and feeding forwardof the rod without losing a stroke of the roller-hammer, and also tofeed the rod to the dies automati; cally.

A The invention consists in various devices and combinations of devicesfor accomplishing these purposes. The construction of these devices andone mode of organizing them in an operative machine will be herein-alterfully described, and the special improvements which are believed to benew pointed out definitely in claims.

I In the drawings, A represents the main or supporting frame of themachine, which may be of any suitable construction adapted to receiveand sustain the several operative parts of the machine, and to providebearin gs wherever they are required. A main or driving shaft, B, ismounted on suitable standards a rising from the bed of the main frame,and

ings for this shaft. A driving-pulley, b, is

fastened on one end ofthis shaft, outside of one of the standards, andoutside of it is a small pinion, b. The "roller-hammer O is also mountedon this shaft, being attached to a cylinder, a, secured to the shaft.Inmachines of this class heretofore this roller-hammer has been arrangeddirectly over, or in the same plane MACHINE FOR FORGING HORSESHOE-NAILS.

Patent No. 241,413, dated May 10, 1881.

(Modeh) with, the cylinder by which it is carried. I arrange thestandards 0, in which the roller-hammer is mounted, in such way that oneof them stands entirely outside of the cylinder, so that theroller-hannner itself, when mounted in its bearings, is just outside theplane of the cylinder, or overhangs the latter, as shown in Fig. 1 ofthe drawings. In other respects this roller-hammer and itscarrying-cylinder are of any usual construction.

Underneath the bed of the main frame is a second shaft, I), mounted inbearings on suitable side bars belonging to the frame of the machine.011 one end of this shaft, outside of the frame, is secured a largegear-wheel, d, which engages with the pinion on the drivingshaft, fromwhich latter motion is communicated to the lower shaft.

On thelower shaft, D, within the frame and next to the gear-wheel d, isa cam, E, and on the opposite end of the shaft. is another cam, F, whilebetween the two is a third smaller cam, G, all of which are fastened tothe shaft in any suitable manner, and the functions of which will bepresently described.

The. anvil H is supported by a suitable hanger, a, beneath the bed ofthe frame. The

anvil is mounted in a carrier or holder, h,

which is pivoted at its lower end to the hanger, the line of the pivotbeing parallel to the shaft of the roller-hammer, thereby providing forthe vibration or swinging of the anvil in a direction at right angles tosaid shaft, or in other words in line with the line of action of theroller-ham mer. The anvil is arranged directly underneath theroller-hammer and is held up in suitable working position with referenceto the latter by means of a lever, I, pivoted to the lower end of thehanger and arranged with its outer end bearing up against the lowerendof the anvil carrier at a point in rear of'the pivot of the latter,while its inner end is carried underneath the cam G, and is providedwith a projection, 2', working against the face of this cam, which holdsthe anvil-in proper position for the operation of the roller-hammersoilong as the regular circular portion of the cam remains in contactwith the lever. At a certain point in the cam there is a depression, g,into which, at each revolution of the cam, the

- the lever at the proper moment.

two bars,which operates to hold the bars apart unless otherwiseactuated.

A gage, T, is attached to the front end of the frame, and extendsrearward to limit and regulate the backward throw of the swingingclamparm. This gage is slotted to provide for adjustment. Underneath theclamp-arms and at right angles thereto is a lever, U, pivoted at itsforward end to a suitable support or bracket, V. At itsinner end it isprovided with a projecting pin or cam, u, on its under side, with whicha projection, c, on the rimface of the cam E comes in contact, to raiseBetween the pin a and the pivot of the lever is a pin, a, restingloosely in a recess or socket in the upper side of the lever and passingup through the clamp-bar S until its upper end strikes theclamping-spring S, thereby providing for slightly raising theclamping-spring by throwing upward the lever. An upright lever, W, isalso pivoted to thebracket V, the upper end of which is provided with atoe, to, projecting up just in front of the pivoted clamp-bar S. Thelower end of this lever is bent and shaped to form a cam, 20, which isactuated by a camprojection, c, on the smaller rim of the cam E, tovibrate the lever at the moment desired, to throw forward the clamp-armS.

A bell-crank lever, X, is pivoted to suitable brackets depending fromthe lower side of the clamp-barR. The lower end of the lever passes downby the side of the inner cam, E. The upper end of this lever is providedwith a pin, 90, which passes up through a hole in the clampbar R untilit strikes the under side of the spring-clamp R. A cam-projection, 6 onthe inner face ofnthe cam E strikes against the lower end of the lever Xat the proper moment to vibrate the latter outwardly, thereby raisin gthe upper end and slightly lifting the springclamp It to release itshold upon the rod.

The operation of this machine is as follows: The pinion on thedriving-shaft. and the gearwlieel are constructed with such a relativenumber of teeth that a certain definite number ofrevolutions of the mainshaft will be required toeffect one revolution of the shaft D, which,for convenience, may be called the cam-shaft. The several devices abovedescribed'are constructed, arranged, and timed so as to move at theproper intervals to secure the operations and in the order as.hereinafter named. Suppose, now, the parts are in the position shown inF i of the drawings, just after the cutters have been operated, theanvil being returned to. working position and the roller-hammer abouttodescend, and suppose the rod to be placed underneath the springclampsR ends, and projecting upon the anvil just sufficient to form anail-blank, the rod will be held in position by the clamps, and themachine being set in motion, the blank will be forged by the combinedoperation of the roller-hammer, anvil, striking-hammer, and stationarydie, in the usual manner in machines of this description. In thedrawings the relation of the gears is such that nine revolutions of themain shaft are required to produce one revolution of the cam-shaft.These nine revolutions will give nine strokes of the roller-hammer andnine strokes of the side-striking hammer, which will produce thenail-blank. The elastic vibrating support M and spring-support N preventthe blank from sticking to the dies during this operation. 'Just as theninth stroke of the hammer is made the anvil is vibrated to the rearbeyond the face of the stationary die, and at the same time the lowercutters are thrown inward into the place lately occupied by the anvil,and the upper cutters are brought down to cut off the nail which lies between the cutters 0 and p. The instant the cutting is performed thecutters are released and spring back to their former positions, and atthe same time the inner clamp, R, is-released and the outer clamp, S, isswung forward to feed the rod forward the proper (listance. The instantthis feed is accomplished the outer clamp, S, is released, and the innerclamp, R, is let down upon the rod, when the clamp S swings back to itsformer position and again takes hold of the rod. Simultaneously with thefeed the anvil springs back to its working position. .All of thesemovements of the cutters, feed mechanism, and return-vibration of theanvil, are effected during the single revolution of the main shaft andbefore the roller-hammer is brought round to make another stroke afterfinishing the last or ninth stroke, which completes the blank. It willthus be seen that not a single stroke of the roller-hammer is lost, thetenth stroke being, in fact, made when all the parts are again inworking position, so that it becomes, in fact, the first stroke inmaking another blank. During this revolution of the main shaft there is,however, a single vibration of the strikinghammer completed just afterthe blank is cut ofl and at the moment the cutters spring out of theway. This vibration of the strikinghammer is, therefore, useless, butwith this exception there is no lost motion in the entire operation ofthe machine. This advantage is obtained from the peculiar arrangement ofthe cutters in connectionwith the vibrating anvil, and the constructionand arrangement of the cutters, which permit them to be operated in theplace of the anvil without attaching them to movable parts, are renderedpossible only by the overhanging arrangement of the rollerhanimer.

Obviously, therefore, the nail-blanks are I time it will be noticed thatthe main operative parts. are independent of each other, so that theanvil may be removed without affecting the cutters, and vice versa, andalso any one of the hammers removed without disturbing any of the otherparts. This independence of construction and operation is also believedto be an advantage in my machine, and it will be seen that the cutters,anvil, and hammers are operated by separate mechanisms, so that eitherone may be operated without absolute dependence upon the others.

The arrangement of the roller-hammer overhanging its supporting-carrieris a very important improvement, for it is this construction whichenables me to hold the upper cutters in a state of rest underneath thedriving-shaft in the plane of the roller-hammer, so that the latter inits revolutions passes under the cutters. This permits the cutters to beoperated quickly without moving their support bodilyinto workingposition, and without moving the nail after it is formed, so that thewhole operation of cutting and feeding is accomplished during a singlerevolution of the hammer-shaft.

I have shown in the drawings, and described above, a machine so gearedthat nine strokes are made in forging a single nail-blank. This is amerely arbitrary relation, however, and is a larger number of strokesthan is really required to forge a blank, as I have found by actualexperiment that seven, or even less, blows in my machine are suflicientfor this purpose, so that I am able to make a nail-blank forevery sevenrevolutions of themain or rollerhammer shaft and a single revolution ofthe cam-shaft without the loss of any motion whatever, except a singlestroke of the side ham- 1nera result which, so far as I know, has neverbeen obtained in any nail-forging machine heretofore used or invented.

I have herein shown and described a complete machine, including all thedevices and mechanisms organized for practical use. 0bviously, however,many of these devices may be modified in construction and arrangement,and to some extent in organization, so long as the advantageous resultswhich constitute the gist of my invention are obtained in substantiallythe same manner.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a. horseshoe-nail machine, the combination of the followingelements: a revolving roller-hammer, an anvil mounted on a pivotalsupport, mechanism whereby the anvil is alternately held stationary andthen oscillated in the plane of revolution of the said hammer when thenail is forged, cutters for severing the forged nail, and mechanism tocause the cutters to take the place of the anvil to cut off the nail.

2. In a horseshoe-nail machine, the combination of the followingelements: a revolving roller-hammer, a pivoted anvil, a stationary sidedie and a side-striking hammer, and mechanism whereby the anvil isalternately held stationary and then oscillated in the plane of rotationof the roller-hammer on the completion of the forging operation.

3. In a horseshoe-nail machine, a revolving roller-hammer, incombination with a pivoted anvil, mechanism whereby the said anvil isheld stationary during the forging of the nail and then oscillated topermit the cutters tooperate, cutters mounted independently of theanvil, and mechanism for operating the said cutters, whereby the nail iscut off when the anvil is moved out of the way without moving the nail,substantially as described.

4. In a horseshoe-nail machine, a revolving roller-hammer, arranged tooverhang the can rier by which it is revolved, in combination with thevibrating anvil and upper cutters, arranged to vibrate in a planeperpendicular to the plane of revolution of said hammer and to cutthenail without removing it from the path of the latter, substantially asdescribed.

5. In a horseshoe-nail machine, a revolving roller-hammer arranged tooverhang its carrier, in combination with the vibrating anvil, and avibrating cutter arranged to stand while in a state of rest over theanvil and in the plane in which said hammer revolves, substantially asand for the purpose set forth.

6. In a horseshoe-nail machine, a pivoted anvil, in combination withmechanism for oscillating the anvil at intervals; a revolvingroller-hammer overhanging its carrier, and a vibrating cutter arrangedto operate in the place of the anvil when moved from itsworkingposition, and to stand while at rest between said anvil and thehammer-shaft, substantially as described.

7. In a horseshoe-nail machine, a revolving roller-hammer overhangingits carrier, in combination with apivoted anvil arranged to oscillate inthe plane of the roller-hammer, and independentvibratingupperandlowercutters, operating to cut the nail in the place of the anvilwhen removed, substantially as described.

8. In a horseshoe-nail machine, a revolving roller-hammer, incombination with an oscillatin g anvil arranged to stand stationarydurin g the forging operation and then to oscillate from its workingposition, a side stationary die, a side-striking hammer, cutting devicesfor cutting off the nail when formed, feeding devices for feedingforward the rod, and mechanism for holding and oscillating the anvil,whereby the latteris moved out of its working position and againreturned, and the cutting and feeding devices are operated to cut offthe nail and feed forward the rod, all during a single revolution of theroller-hammer, to prevent any lost stroke of the latter, substantiallyas described.

9. The roller-hammer (3, arranged to overhang its carrier 0, incombination with the oscillating anvil H and cutters 19, mounted on thepivoted vibrating arm P, all arranged and operating substantially asdescribed.

10. The cutters 0, mounted on an elastic support, 0, in combination withthe cam F, provided with the side cam-projection, f, substantially asdescribed.

11. The pivoted anvil, in combination with the spring J, lever I,provided with the cam- IIO projection i, and cam G, provided withdeanvil arranged to stand stationary while the pression g, substantiallyas described. nail is forged, in combination with a revolving 12. Thespring-clamp S, mounted on the pivroller-hammer arranged upon a shaftabove oted bar S, in combination with the lever W, the anvil, mechanismwhereby the anvil is vi- 2o 5 and cam E, provided with thecam-projection brated at the completion of the forging operae,substantially as and for the purpose set tion to remove it fromunderneath the nail, forth. upper cutters arranged above the anvil, andm 13. The spring-clamp R, mounted on a stamechanism whereby said cuttersare vibrated tionary support, in combination with the in theplane ofrevolution of the roller-hammer 25 1o spring-clamp S, mounted on thevibrating bar to out off the nail in the place of the anvil when S, thelever U, provided with pins u a, the removed, substantially asdescribed. bell-crank lever X, provided with pin 00, the q, leverW, andthe cam E,provided with the cam- LOUIS PARRE' projections e and e",substantially as and for Witnesses: r 5 the purpose set forth. J NO. 0.MAGGREGOR,

14. In a horseshoe-nail machine, a pivoted THOMAS H. PEASE.

